US20260031372A1 - Electric power supply system - Google Patents

Electric power supply system

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Publication number
US20260031372A1
US20260031372A1 US18/844,354 US202218844354A US2026031372A1 US 20260031372 A1 US20260031372 A1 US 20260031372A1 US 202218844354 A US202218844354 A US 202218844354A US 2026031372 A1 US2026031372 A1 US 2026031372A1
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United States
Prior art keywords
hydrogen
hydrogen tank
tank
valve
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US18/844,354
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English (en)
Inventor
Toyoshi Kondo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tatsumi Ryoki Co Ltd
Original Assignee
Tatsumi Ryoki Co Ltd
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Filing date
Publication date
Application filed by Tatsumi Ryoki Co Ltd filed Critical Tatsumi Ryoki Co Ltd
Publication of US20260031372A1 publication Critical patent/US20260031372A1/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • H01M8/04216—Reactant storage and supply, e.g. means for feeding, pipes characterised by the choice for a specific material, e.g. carbon, hydride, absorbent
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
    • G01B15/06—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring the deformation in a solid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04029—Heat exchange using liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • H01M8/04208—Cartridges, cryogenic media or cryogenic reservoirs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0444—Concentration; Density
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04701—Temperature
    • H01M8/04738—Temperature of auxiliary devices, e.g. reformer, compressor, burner
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04776—Pressure; Flow at auxiliary devices, e.g. reformer, compressor, burner
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/065—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by dissolution of metals or alloys; by dehydriding metallic substances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • an object of the present invention is to provide an electric power supply system capable of efficiently storing and discharging hydrogen.
  • a valve between the hydrogen tank and the hydrogen generation unit is closed, a valve between the hydrogen tank and the fuel cell is closed, and the hydrogen tank is removably held by the holding unit.
  • the electric power supply system includes a control unit configured to calculate a hydrogen filling rate of the first hydrogen tank based on information regarding at least one of a radio wave intensity or a signal waveform of the radio waves obtained from the first transmission unit by the first communication unit.
  • the first hydrogen tank is made of a resin having radio wave permeability.
  • the electric power supply system includes a control unit configured to control a valve of the guide path in such a way that the hot air is supplied to the hydrogen tank that supplies hydrogen to the fuel cell among the first hydrogen tank, the second hydrogen tank, and the third hydrogen tank, via the guide path.
  • the electric power supply system includes a heat transfer unit including a fan configured to supply cooling air to the fuel cell, and a guide path configured to guide hot air obtained by heating the cooling air by the fuel cell to at least one of the water heater or the hot water pipe.
  • the hydrogen tank that supplies hydrogen to the fuel cell among the first hydrogen tank, the second hydrogen tank, and the third hydrogen tank is unremovably held by the holding unit during the hydrogen supply.
  • the first holding device includes a first locking mechanism that brings the first hydrogen tank into a removable state when in an on state and brings the first hydrogen tank into an unremovable state when in an off state.
  • said hydrogen tank is brought into a removable state on the condition that both an inlet valve and an outlet valve of said hydrogen tank are closed. Therefore, it is possible to prevent the hydrogen tank from being inadvertently detached from the holding mechanism during filling of hydrogen or discharge of hydrogen.
  • FIG. 1 is a configuration diagram of an electric power supply system according to the present embodiment.
  • FIG. 2 is a diagram illustrating a flow of waste heat from a second DC power generation device.
  • An electric power supply system 1 of the present embodiment includes a direct current (DC) power supply unit 10 , an alternating current (AC) power supply unit 20 , a conversion unit 30 , an electric power storage unit 50 , a control unit 60 , a hydrogen supply unit 70 , a heat transfer unit 90 , switches (01-th to 10-th switches S 01 to S 10 ), and valves (01-th to 26-th valves B 01 to B 26 ) (see FIGS. 1 and 2 ).
  • FIG. 1 illustration of a locking mechanism (such as a first locking mechanism 74 a 1 ) of the hydrogen supply unit 70 and a part of a guide path 92 of the heat transfer unit 90 is omitted.
  • a locking mechanism such as a first locking mechanism 74 a 1
  • a hydrogen storage alloy AM that is invisible from the outside is indicated by a dotted line.
  • the electric power supply system 1 generates electric power and supplies the generated electric power to an external load.
  • the electric power supply system 1 generates hydrogen and generates the electric power based on the generated hydrogen.
  • the generated electric power is supplied to a load 100 .
  • the load 100 is an electric device driven by AC power, such as an air conditioner.
  • the DC power supply unit 10 includes a first DC power generation device 11 and a second DC power generation device 12 .
  • the electric power obtained by the first DC power generation device 11 is supplied to a first electric power storage device 51 of the electric power storage unit 50 via a first conversion device 31 and a second conversion device 32 of the conversion unit 30 .
  • the electric power obtained by the first DC power generation device 11 is supplied to a second electric power storage device 52 of the electric power storage unit 50 via the first conversion device 31 of the conversion unit 30 .
  • the electric power obtained by the first DC power generation device 11 is supplied to the load 100 via the first conversion device 31 of the conversion unit 30 .
  • the first DC power generation device 11 includes a backflow prevention device such as a diode.
  • the electric power obtained by the first DC power generation device 11 may be directly supplied to the hydrogen generation unit 71 without passing through the first electric power storage device 51 .
  • the second DC power generation device 12 is an electric power generation device (fuel cell) that generates electric power based on hydrogen.
  • the second DC power generation device 12 is brought into a state where electric power generation can be performed in a case where the electric power supplied from the first DC power generation device 11 or the like is not sufficient.
  • the electric power obtained by the second DC power generation device 12 is supplied to a third electric power storage device 53 of the electric power storage unit 50 via a third conversion device 33 of the conversion unit 30 .
  • the second DC power generation device 12 includes a backflow prevention device such as a diode.
  • the AC power supply unit 20 includes a first AC power generation device 21 .
  • the first AC power generation device 21 is an electric power generation device (renewable energy-derived electric power generation device) that generates alternating current (AC) power based on natural energy (renewable energy), such as a wind power generation device or a wave power generation device.
  • AC alternating current
  • the first AC power generation device 21 is always in a state where electric power generation can be performed.
  • the first AC power generation device 21 is a wind power generation device, and wind power received by the first AC power generation device 21 exceeds predetermined wind power, the first AC power generation device 21 is brought into a state where electric power generation cannot be performed.
  • the electric power obtained by the first AC power generation device 21 is supplied to the hydrogen generation unit 71 of the hydrogen supply unit 70 via a fourth conversion device 34 of the conversion unit 30 .
  • the AC power supply unit 20 may include a second AC power generation device 22 instead of the first AC power generation device 21 or in addition to the first AC power generation device 21 .
  • the second AC power generation device 22 is an electric power generation device that generates AC power based on kinetic energy obtained by an internal combustion engine or an external combustion engine, such as an LP gas power generation device.
  • the electric power obtained by the AC power supply unit 20 may be supplied to the first electric power storage device 51 , the second electric power storage device 52 , the load 100 , and the like.
  • the first conversion device 31 includes a DC/AC inverter.
  • An output side of the first conversion device 31 is connected to the second conversion device 32 , is connected to the second electric power storage device 52 via the 02-th switch S 02 , and is connected to the load 100 via the 03-th switch S 03 .
  • the second conversion device 32 includes an AC/DC converter.
  • An input side of the second conversion device 32 is connected to the first conversion device 31 .
  • the second conversion device 32 converts a flow of electricity of the electric power from the first conversion device 31 from alternating current to direct current.
  • the third conversion device 33 includes a DC/DC converter.
  • An input side of the third conversion device 33 is connected to the second DC power generation device 12 via the 06-th switch S 06 .
  • An output side of the third conversion device 33 is connected to the third electric power storage device 53 .
  • the third conversion device 33 converts the electric power obtained by the second DC power generation device 12 into a predetermined voltage and a predetermined current.
  • the fourth conversion device 34 includes an AC/DC converter.
  • An input side of the fourth conversion device 34 is connected to the first AC power generation device 21 via the 04-th switch S 04 .
  • An output side of the fourth conversion device 34 is connected to the hydrogen generation unit 71 via the 05-th switch S 05 .
  • the fourth conversion device 34 converts a flow of electricity of the electric power from the first AC power generation device 21 from alternating current to direct current.
  • the fifth conversion device 35 includes a DC/AC inverter.
  • An input side of the fifth conversion device 35 is connected to the third electric power storage device 53 via the 09-th switch S 09 .
  • An output side of the fifth conversion device 35 is connected to the load 100 via the 10-th switch S 10 .
  • the fifth conversion device 35 converts a flow of electricity of the electric power stored in the third electric power storage device 53 from direct current to alternating current.
  • the electric power storage unit 50 includes the first to third electric power storage devices 51 to 53 .
  • the electric power stored in the first electric power storage device 51 is mainly used for generating hydrogen, that is, for driving the hydrogen generation unit 71 .
  • the electric power stored in the second electric power storage device 52 is mainly used to drive each unit of the electric power supply system 1 .
  • the electric power stored in the third electric power storage device 53 is mainly used for driving the load 100 .
  • the first electric power storage device 51 includes a charge device and an electric power storage device for storing electric power from the first DC power generation device 11 .
  • the electric power stored in the first electric power storage device 51 is supplied to the hydrogen generation unit 71 .
  • the electric power stored in the first electric power storage device 51 is used for electrolysis of water.
  • the second electric power storage device 52 includes a charge device and an electric power storage device for storing electric power from the first DC power generation device 11 .
  • the electric power stored in the second electric power storage device 52 is supplied to each unit (the control unit 60 , a fan 91 , switches, valves, and the like) of the electric power supply system 1 .
  • the third electric power storage device 53 includes a charge device and an electric power storage device for storing electric power from the second DC power generation device 12 .
  • the electric power stored in the third electric power storage device 53 is supplied to the load 100 .
  • the control unit 60 controls each unit of the electric power supply system 1 .
  • control unit 60 performs on/off control of the 01-th to 10-th switches S 01 to S 10 , open/close control of the 01-th to 26-th valves B 01 to B 26 , on/off control of the first to third locking mechanisms 74 a 1 to 74 c 1 , and the like according to a state of each unit of the electric power supply system 1 .
  • the third hydrogen tank 73 c may be filled with hydrogen, hydrogen may be discharged from the first hydrogen tank 73 a , and the second hydrogen tank 73 b may be detachably held.
  • the control unit 60 When discharging hydrogen from the second hydrogen tank 73 b , the control unit 60 closes an inlet valve (the 03-th valve B 03 ) of the second hydrogen tank 73 b and opens an outlet valve (the 04-th valve B 04 ) and a valve (the 18-th valve B 18 ) of a second tank 76 b of the buffer tank 76 . In addition, the control unit 60 closes a cold water supply valve (the 10-th valve B 10 ) of a second holding device 74 b and opens a hot water supply valve (the 09-th valve B 09 and the 13-th valve B 13 ) of the second holding device 74 b . In addition, the control unit 60 turns off a locking mechanism (the second locking mechanism 74 b 1 ) of the second holding device 74 b so that the second hydrogen tank 73 b cannot be removed from the second holding device 74 b.
  • the control unit 60 closes an inlet valve (the 05-th valve B 05 ) and an outlet valve (the 06-th valve B 06 ) of the third hydrogen tank 73 c .
  • the control unit 60 closes a cold water supply valve (the 12-th valve B 12 ) and a hot water supply valve (the 11-th valve B 11 ) of the third holding device 74 c .
  • the control unit 60 turns on a locking mechanism (the third locking mechanism 74 cl ) of the third holding device 74 c so that the third hydrogen tank 73 c cannot be removed from the third holding device 74 c.
  • the first water supply device 72 a includes a first water intake unit 72 a 1 .
  • the first water intake unit 72 a 1 takes in an electrolyte from the outside, and supplies the electrolyte to the hydrogen generation unit 71 .
  • a first transmission unit 75 a 1 and a first communication unit 75 a 2 of the first detection device 75 a described below are attached to an outer wall of the first hydrogen tank 73 a.
  • the first detection device 75 a may be provided inside the first hydrogen tank 73 a .
  • the first hydrogen tank 73 a may be made of metal.
  • the hydrogen tank removed from the holding device may be used in another external device.
  • the holding unit 74 includes the first to third holding devices 74 a to 74 c.
  • the first holding device 74 a heats the first hydrogen tank 73 a by using the hot water of the hot water tank 72 b 3 or cools the first hydrogen tank 73 a by using the cold water of the cold water tank 72 b 4 .
  • the first holding device 74 a cools the first hydrogen tank 73 a by using the cold water of the cold water tank 72 b 4 .
  • the first holding device 74 a includes the first locking mechanism 74 a 1 .
  • the first locking mechanism 74 a 1 brings the first hydrogen tank 73 a held by the first holding device 74 a into a removable state when in an on state (energized state), and brings the first hydrogen tank 73 a held by the first holding device 74 a into an unremovable state when in an off state (non-energized state).
  • the on/off state of the first locking mechanism 74 a 1 desirably interacts with an open/close state of a valve (01-th valve B 01 ) between the hydrogen generation unit 71 and the first hydrogen tank 73 a and an open/close state of a valve (02-th valve B 02 ) between the second DC power generation device 12 and the first hydrogen tank 73 a.
  • the first locking mechanism 74 a 1 is turned on when both the valve (01-th valve B 01 ) between the hydrogen generation unit 71 and the first hydrogen tank 73 a and the valve (02-th valve B 02 ) between the second DC power generation device 12 and the first hydrogen tank 73 a are closed.
  • both the valve (01-th valve B 01 ) between the hydrogen generation unit 71 and the first hydrogen tank 73 a and the valve (02-th valve B 02 ) between the second DC power generation device 12 and the first hydrogen tank 73 a are closed.
  • the second holding device 74 b heats the second hydrogen tank 73 b by using the hot water of the hot water tank 72 b 3 or cools the second hydrogen tank 73 b by using the cold water of the cold water tank 72 b 4 .
  • the second holding device 74 b cools the second hydrogen tank 73 b by using the cold water of the cold water tank 72 b 4 .
  • the second holding device 74 b includes the second locking mechanism 74 b 1 .
  • the second locking mechanism 74 b 1 brings the second hydrogen tank 73 b held by the second holding device 74 b in to a removable state when in an on state (energized state), and brings the second hydrogen tank 73 b held by the second holding device 74 b into an unremovable state when in an off state (non-energized state).
  • the on/off state of the second locking mechanism 74 b 1 desirably interacts with an open/close state of a valve (03-th valve B 03 ) between the hydrogen generation unit 71 and the second hydrogen tank 73 b and an open/close state of a valve (04-th valve B 04 ) between the second DC power generation device 12 and the second hydrogen tank 73 b.
  • the second locking mechanism 74 b 1 is turned on when both the valve (03-th valve B 03 ) between the hydrogen generation unit 71 and the second hydrogen tank 73 b and the valve (04-th valve B 04 ) between the second DC power generation device 12 and the second hydrogen tank 73 b are closed.
  • both the valve (03-th valve B 03 ) between the hydrogen generation unit 71 and the second hydrogen tank 73 b and the valve (04-th valve B 04 ) between the second DC power generation device 12 and the second hydrogen tank 73 b are closed.
  • the third holding device 74 c heats the third hydrogen tank 73 c by using the hot water of the hot water tank 72 b 3 or cools the third hydrogen tank 73 c by using the cold water of the cold water tank 72 b 4 .
  • the third holding device 74 c cools the third hydrogen tank 73 c by using the cold water of the cold water tank 72 b 4 .
  • the third holding device 74 c includes the third locking mechanism 74 c 1 .
  • the third locking mechanism 74 c 1 brings the third hydrogen tank 73 c held by the third holding device 74 c into a removable state when in an on state (energized state), and brings the third hydrogen tank 73 c held by the third holding device 74 c into an unremovable state when in an off state (non-energized state).
  • the on/off state of the third locking mechanism 74 c 1 desirably interacts with an open/close state of a valve (05-th valve B 05 ) between the hydrogen generation unit 71 and the third hydrogen tank 73 c and an open/close state of a valve (06-th valve B 06 ) between the second DC power generation device 12 and the third hydrogen tank 73 c.
  • the third locking mechanism 74 c 1 is turned on when both the valve (05-th valve B 05 ) between the hydrogen generation unit 71 and the third hydrogen tank 73 c and the valve (06-th valve B 06 ) between the second DC power generation device 12 and the third hydrogen tank 73 c are closed.
  • both the valve (05-th valve B 05 ) between the hydrogen generation unit 71 and the third hydrogen tank 73 c and the valve (06-th valve B 06 ) between the second DC power generation device 12 and the third hydrogen tank 73 c are closed.
  • the detection unit 75 includes the first to third detection devices 75 a to 75 c.
  • the first detection device 75 a is detachably attached to the first hydrogen tank 73 a.
  • the first detection device 75 a includes the first transmission unit 75 a 1 and the first communication unit 75 a 2 .
  • the first detection device 75 a is attached to the first hydrogen tank 73 a in a positional relationship in which the first transmission unit 75 a 1 and the first communication unit 75 a 2 sandwich the hydrogen storage alloy AM disposed inside the first hydrogen tank 73 a.
  • the first transmission unit 75 a 1 emits radio waves having a first frequency f 1
  • the first communication unit 75 a 2 receives radio waves having the first frequency f 1 .
  • the first communication unit 75 a 2 transmits, to the control unit 60 , information regarding a radio wave intensity of the radio waves having the first frequency f 1 or information regarding a signal waveform of received radio waves.
  • Signal transmission from the first communication unit 75 a 2 to the control unit 60 may be wireless or wired transmission.
  • Wireless communication means between the first transmission unit 75 a 1 and the first communication unit 75 a 2 is an RF tag communication method.
  • said wireless communication is not limited to the RF tag communication method, and for example, the wireless communication means may be wireless communication means that transmits its own identification information to the outside while said wireless communication means is turned on, such as IEEE 802.15.1 (Bluetooth (registered trademark)) or IEEE 802.11 (wireless LAN).
  • IEEE 802.15.1 Bluetooth (registered trademark)
  • IEEE 802.11 wireless LAN
  • the wireless communication means of wireless communication performed between the first communication unit 75 a 2 and the control unit 60 is wireless communication means that transmits its own identification information to the outside while said wireless communication means is turned on, such as IEEE 802.15.1 (Bluetooth (registered trademark)) or IEEE 802.11 (wireless LAN).
  • IEEE 802.15.1 Bluetooth (registered trademark)
  • IEEE 802.11 wireless LAN
  • the second detection device 75 b is detachably attached to the second hydrogen tank 73 b.
  • the second detection device 75 b includes the second transmission unit 75 b 1 and the second communication unit 75 b 2 .
  • the second detection device 75 b is attached to the second hydrogen tank 73 b in a positional relationship in which the second transmission unit 75 b 1 and the second communication unit 75 b 2 sandwich the hydrogen storage alloy AM disposed inside the second hydrogen tank 73 b.
  • the second transmission unit 75 b 1 emits radio waves having a second frequency f 2
  • the second communication unit 75 b 2 receives radio waves having the second frequency f 2 .
  • the second communication unit 75 b 2 transmits, to the control unit 60 , information regarding a radio wave intensity of the radio waves having the second frequency f 2 or information regarding a signal waveform of received radio waves.
  • the third transmission unit 75 c 1 emits radio waves having a third frequency f 3
  • the third communication unit 75 c 2 receives radio waves having the third frequency f 3 .
  • the third communication unit 75 c 2 transmits, to the control unit 60 , information regarding a radio wave intensity of the radio waves having the third frequency f 3 or information regarding a signal waveform of received radio waves.
  • the depressurization adjustment unit 78 includes a first depressurization adjustment device 78 a and a second depressurization adjustment device 78 b.
  • the first depressurization adjustment device 78 a adjusts a pressure of hydrogen from the high-pressure hydrogen cylinder 77 .
  • the gas-liquid separator 79 separates a liquid of a substance containing hydrogen discharged from the first hydrogen tank 73 a or the like from a gas.
  • the 01-th switch S 01 is provided between the first DC power generation device 11 and the first conversion device 31 .
  • the 02-th switch S 02 is provided between the first conversion device 31 and the second electric power storage device 52 .
  • the 02-th switch S 02 performs on/off control of electric power supply from the first DC power generation device 11 to the second electric power storage device 52 via the first conversion device 31 .
  • the 03-th switch S 03 is provided between the first conversion device 31 and the load 100 .
  • the 04-th switch S 04 is provided between the first AC power generation device 21 and the fourth conversion device 34 .
  • the 05-th switch S 05 is provided between the fourth conversion device 34 and the hydrogen generation unit 71 .
  • the 05-th switch S 05 performs on/off control of electric power supply from the first AC power generation device 21 to the hydrogen generation unit 71 via the fourth conversion device 34 .
  • the 06-th switch S 06 is provided between the second DC power generation device 12 and the third conversion device 33 .
  • the 06-th switch S 06 performs on/off control of electric power supply from the second DC power generation device 12 to the third conversion device 33 .
  • the 07-th switch S 07 is provided between the first electric power storage device 51 and the hydrogen generation unit 71 .
  • the 07-th switch S 07 performs on/off control of electric power supply from the first electric power storage device 51 to the hydrogen generation unit 71 .
  • the 08-th switch S 08 is provided between the second electric power storage device 52 and the control unit 60 .
  • the 08-th switch S 08 performs on/off control of electric power supply from the second electric power storage device 52 to the control unit 60 and the like.
  • the 09-th switch S 09 is provided between the third electric power storage device 53 and the fifth conversion device 35 .
  • the 09-th switch S 09 performs on/off control of electric power supply from the third electric power storage device 53 to the fifth conversion device 35 .
  • the 10-th switch S 10 is provided between the fifth conversion device 35 and the load 100 .
  • the 10-th switch S 10 performs on/off control of electric power supply from the third electric power storage device 53 to the load 100 via the fifth conversion device 35 .
  • Either the 09-th switch S 09 or the 10-th switch S 10 may be omitted.
  • the 01-th valve B 01 is provided on a hydrogen pipe P 1 between the hydrogen generation unit 71 and the first hydrogen tank 73 a.
  • the 01-th valve B 01 serves as the inlet valve (first inlet valve) of the first hydrogen tank 73 a and performs on/off control of hydrogen supply from the hydrogen generation unit 71 to the first hydrogen tank 73 a.
  • the 02-th valve B 02 is provided on the hydrogen pipe P 1 between the first hydrogen tank 73 a and the second depressurization adjustment device 78 b.
  • the 02-th valve B 02 serves as the outlet valve (first outlet valve) of the first hydrogen tank 73 a and performs on/off control of hydrogen supply from the first hydrogen tank 73 a to the second DC power generation device 12 via the second depressurization adjustment device 78 b.
  • the 03-th valve B 03 is provided on the hydrogen pipe P 1 between the hydrogen generation unit 71 and the second hydrogen tank 73 b.
  • the 03-th valve B 03 serves as the inlet valve (second inlet valve) of the second hydrogen tank 73 b and performs on/off control of hydrogen supply from the hydrogen generation unit 71 to the second hydrogen tank 73 b.
  • the 04-th valve B 04 is provided on the hydrogen pipe P 1 between the second hydrogen tank 73 b and the second depressurization adjustment device 78 b.
  • the 04-th valve B 04 serves as the outlet valve (second outlet valve) of the second hydrogen tank 73 b and performs on/off control of hydrogen supply from the second hydrogen tank 73 b to the second DC power generation device 12 via the second depressurization adjustment device 78 b.
  • the 05-th valve B 05 is provided on the hydrogen pipe P 1 between the hydrogen generation unit 71 and the third hydrogen tank 73 c.
  • the 05-th valve B 05 serves as the inlet valve (third inlet valve) of the third hydrogen tank 73 c and performs on/off control of hydrogen supply from the hydrogen generation unit 71 to the third hydrogen tank 73 c.
  • the 06-th valve B 06 is provided on the hydrogen pipe P 1 between the third hydrogen tank 73 c and the second depressurization adjustment device 78 b.
  • the 06-th valve B 06 serves as the outlet valve (third outlet valve) of the third hydrogen tank 73 c and performs on/off control of hydrogen supply from the third hydrogen tank 73 c to the second DC power generation device 12 via the second depressurization adjustment device 78 b.
  • the 07-th valve B 07 is provided on the hot water pipe P 2 between the hot water tank 72 b 3 and the first holding device 74 a and provided closer to the first holding device 74 a.
  • the 07-th valve B 07 serves as the hot water supply valve of the first holding device 74 a and performs on/off control of hot water supply from the hot water tank 72 b 3 to the first holding device 74 a.
  • the 08-th valve B 08 is provided on a cold water pipe P 3 between the cold water tank 72 b 4 and the first holding device 74 a and provided closer to the first holding device 74 a.
  • the 08-th valve B 08 serves as the cold water supply valve of the first holding device 74 a and performs on/off control of cold water supply from the cold water tank 72 b 4 to the first holding device 74 a.
  • the 09-th valve B 09 is provided on the hot water pipe P 2 between the hot water tank 72 b 3 and the second holding device 74 b , and provided closer to the second holding device 74 b.
  • the 09-th valve B 09 serves as the hot water supply valve of the second holding device 74 b and performs on/off control of hot water supply from the hot water tank 72 b 3 to the second holding device 74 b.
  • the 10-th valve B 10 is provided on the cold water pipe P 3 between the cold water tank 72 b 4 and the second holding device 74 b , and provided closer to the second holding device 74 b.
  • the 10-th valve B 10 serves as the cold water supply valve of the second holding device 74 b and performs on/off control of cold water supply from the cold water tank 72 b 4 to the second holding device 74 b.
  • the 11-th valve B 11 is provided on the hot water pipe P 2 between the hot water tank 72 b 3 and the third holding device 74 c , and provided closer to the third holding device 74 c.
  • the 11-th valve B 11 serves as the hot water supply valve of the third holding device 74 c and performs on/off control of hot water supply from the hot water tank 72 b 3 to the third holding device 74 c.
  • the 12-th valve B 12 is provided on the cold water pipe P 3 between the cold water tank 72 b 4 and the third holding device 74 c , and provided closer to the third holding device 74 c.
  • the 12-th valve B 12 serves as the cold water supply valve of the third holding device 74 c and performs on/off control of cold water supply from the cold water tank 72 b 4 to the third holding device 74 c.
  • the 13-th valve B 13 is provided on the hot water pipe P 2 between the hot water tank 72 b 3 and the first to third holding devices 74 a to 74 c , and provided closer to the hot water tank 72 b 3 .
  • the 13-th valve B 13 performs on/off control of hot water supply from the hot water tank 72 b 3 to the first to third holding devices 74 a to 74 c.
  • the 13-th valve B 13 may be omitted.
  • the 14-th valve B 14 is provided on the cold water pipe P 3 between the cold water tank 72 b 4 and the first to third holding devices 74 a to 74 c , and provided closer to the cold water tank 72 b 4 .
  • the 14-th valve B 14 performs on/off control of cold water supply from the cold water tank 72 b 4 to the first to third holding devices 74 a to 74 c.
  • the 14-th valve B 14 may be omitted.
  • the 15-th valve B 15 is provided on the hot water pipe P 2 between the hot water tank 72 b 3 and a discharge end of the hot water pipe P 2 , and provided closer to the discharge end.
  • the 15-th valve B 15 performs on/off control of hot water discharge from the hot water tank 72 b 3 .
  • the 16-th valve B 16 is provided on the cold water pipe P 3 between the cold water tank 72 b 4 and a discharge end of the cold water pipe P 3 , and provided closer to the discharge end.
  • the 16-th valve B 16 performs on/off control of cold water discharge from the cold water tank 72 b 4 .
  • the 17-th valve B 17 is provided on the hydrogen pipe P 1 between the hydrogen generation unit 71 and the first tank 76 a of the buffer tank 76 .
  • the 17-th valve B 17 adjusts the amount of hydrogen supplied from the first tank 76 a to the first hydrogen tank 73 a and the like.
  • the 18-th valve B 18 is provided on the hydrogen pipe P 1 between the second tank 76 b of the buffer tank 76 and the second depressurization adjustment device 78 b.
  • the 18-th valve B 18 adjusts the amount of hydrogen supplied from the second tank 76 b to the second DC power generation device 12 .
  • the 19-th valve B 19 is provided on the hydrogen pipe P 1 between the first depressurization adjustment device 78 a and the second depressurization adjustment device 78 b.
  • the 19-th valve B 19 adjusts the amount of hydrogen supplied from the high-pressure hydrogen cylinder 77 to the second DC power generation device 12 .
  • the 20-th valve B 20 is provided on the hydrogen pipe P 1 between the second depressurization adjustment device 78 b and the gas-liquid separator 79 .
  • the 20-th valve B 20 adjusts the amount of hydrogen discharged from the first hydrogen tank 73 a and the like to the outside.
  • the 21-th valve B 21 is provided on the hydrogen pipe P 1 between the second depressurization adjustment device 78 b and the second DC power generation device 12 .
  • the 21-th valve B 21 adjusts the amount of hydrogen supplied from the first hydrogen tank 73 a and the like to the second DC power generation device 12 .
  • the 22-th valve B 22 is provided on the hydrogen pipe P 1 between the first hydrogen tank 73 a and the like and a discharge end of the hydrogen pipe P 1 .
  • the 22-th valve B 22 is used as a relief valve.
  • the 23-th valve B 23 performs on/off control of hot air supply from the heat generating region of the second DC power generation device 12 to the water heater 72 b 2 .
  • the 24-th valve B 24 is provided on the guide path 92 between the second DC power generation device 12 and the first hydrogen tank 73 a.
  • the 24-th valve B 24 performs on/off control of hot air supply from the heat generating region of the second DC power generation device 12 to the first hydrogen tank 73 a.
  • the 25-th valve B 25 is provided on the guide path 92 between the second DC power generation device 12 and the second hydrogen tank 73 b.
  • the 25-th valve B 25 performs on/off control of hot air supply from the heat generating region of the second DC power generation device 12 to the second hydrogen tank 73 b.
  • the 26-th valve B 26 is provided on the guide path 92 between the second DC power generation device 12 and the third hydrogen tank 73 c.
  • the 26-th valve B 26 performs on/off control of hot air supply from the heat generating region of the second DC power generation device 12 to the third hydrogen tank 73 c.
  • a hydrogen tank for example, the first hydrogen tank 73 a
  • a hydrogen tank for example, the second hydrogen tank 73 b
  • a hydrogen tank for example, the third hydrogen tank 73 c
  • a hydrogen tank for example, the third hydrogen tank 73 c
  • the amount of hydrogen absorbed in the hydrogen storage alloy AM changes, the shape and the like of the hydrogen storage alloy AM change. Based on said change, the radio wave intensity that can be received through said hydrogen storage alloy AM changes. Therefore, by disposing a transmission unit and a communication unit (reception device) in a positional relationship in which said hydrogen storage alloy AM is sandwiched, it is possible to acquire information regarding the radio wave intensity that can be received through the hydrogen storage alloy AM, and it is possible to calculate the amount of hydrogen absorbed in said hydrogen storage alloy AM, that is, the hydrogen filling rate of the hydrogen tank containing said hydrogen storage alloy AM based on said information regarding the radio wave intensity.
  • Hydrogen can be efficiently stored and discharged by supplying hydrogen to a fuel cell (the second DC power generation device 12 ) for a hydrogen tank having a high hydrogen filling rate rh and receiving hydrogen supplied from the hydrogen generation unit 71 for a hydrogen tank having a low hydrogen filling rate rh.
  • the hydrogen storage alloy AM By transferring heat obtained by the fuel cell (the second DC power generation device 12 ) to the first hydrogen tank 73 a and the like, the hydrogen storage alloy AM can be heated, and hydrogen can be easily released from said hydrogen storage alloy.
  • the hydrogen storage alloy AM By transferring heat obtained by the fuel cell (the second DC power generation device 12 ) to the water heater 72 b 2 or the like, the hydrogen storage alloy AM can be heated, and hydrogen can be easily released from said hydrogen storage alloy AM.
  • said hydrogen tank is brought into a removable state on the condition that both an inlet valve (the 01-th valve B 01 or the like) and an outlet valve (the 02-th valve B 02 or the like) of said hydrogen tank are closed. Therefore, it is possible to prevent the hydrogen tank from being inadvertently detached from the holding mechanism during filling of hydrogen or discharge of hydrogen.
  • the heat transfer unit 90 includes the fan 91 and the guide path 92 .
  • means for transferring heat generated by the second DC power generation device 12 to the first hydrogen tank 73 a or the like may be implemented by another device such as a heat pump.
  • heating and cooling of the first hydrogen tank 73 a and the like may be performed by another device such as a heat pump.
  • hydrogen may be discharged by depressurizing the inside of the first hydrogen tank 73 a or the like, and hydrogen may be stored by pressurizing the inside of the first hydrogen tank 73 a or the like.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Fuel Cell (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
US18/844,354 2022-03-30 2022-03-30 Electric power supply system Pending US20260031372A1 (en)

Applications Claiming Priority (1)

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PCT/JP2022/015820 WO2023188064A1 (ja) 2022-03-30 2022-03-30 電力供給システム

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JP4354122B2 (ja) * 2001-02-23 2009-10-28 本田技研工業株式会社 燃料電池用水素供給装置
JP3719178B2 (ja) 2001-09-13 2005-11-24 ソニー株式会社 水素ガス製造充填装置及び電気化学装置
JP2007026683A (ja) * 2005-07-12 2007-02-01 Japan Steel Works Ltd:The 燃料電池システム
EP1963547B1 (en) 2005-12-23 2019-07-03 Quantum Fuel Systems LLC Safety warning and shutdown device and method for hydrogen storage containers
JP6102888B2 (ja) * 2014-11-07 2017-03-29 トヨタ自動車株式会社 燃料電池システムおよび燃料電池システムの制御方法
JP6261010B2 (ja) 2015-12-14 2018-01-17 株式会社日本製鋼所 水素残量センサおよびその製造方法
JP6658024B2 (ja) * 2016-02-04 2020-03-04 コニカミノルタ株式会社 駆動装置及び歪み制御方法
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CN118922968A (zh) 2024-11-08
TW202342822A (zh) 2023-11-01

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